And in Pre-LCI, 2005-6 model, you cannot do much other than reducing the volumer while reversing (and its worth of listening to quality music than hearing gongs).
However on few 2007-8 cars, I have brought it back to 90% of its volume with extensive coding.

I have coded alpine in my lci e90.

PDc bongs are very low even at max nothing like before I installed the kit.

It's definitely not a technical issue - the Alpine kit doesn't integrate with the rest of the car's electronics, it just takes the output signal from the head unit and amplifies it, so there's really nothing for it to interact with. The coding is to remove the EQ from the factory output, which boosts treble to compensate for the lack of tweeters, so makes the sound overly bright if you fit the Alpine kit. I've got a 2011 CIC in my car with the Alpine kit that I've coded to hifi and it works perfectly.

There are two different kits - you want to make sure you get the later plug-and-play kit for easier installation, rather than the older cut-and-join kit.

Makkan ive taken the plunge and bought an alpine kit. I also got the L7 tweeters mids and underseats. I then got really good deals on a jl audio w7 10" sub and jl audio 1000w amp to power it. Now im a bit lost for direction and have a few questions.

If i use the sub as the governing factor for the music in my car then are the alpine kit and L7s up to the task or do u think they will need upgrading? (I want quality more than anything else. I absolutely hate big sound that is all distorted) I was looking at some focals about £220 for the pair. Or do i need something like mosconis or morels?

If the eq settings in the HU was coded out would there be any benefit of a ms8?

Im thinking id like to run a centre speaker. Can the alpine amp be wired in such a way to run a centre speaker. If not how do you run a centre speaker and is there a 5 channel amp out there for this purpose? Also if the L7s did work then what speaker speaker would you recommend for the centre?

And in Pre-LCI, 2005-6 model, you cannot do much other than reducing the volumer while reversing (and its worth of listening to quality music than hearing gongs).
However on few 2007-8 cars, I have brought it back to 90% of its volume with extensive coding.

And to add on 2008 onward, bongs are very loud with hi-fi coding and there is a solution with extensive coding.

Makkan ive taken the plunge and bought an alpine kit. I also got the L7 tweeters mids and underseats. I then got really good deals on a jl audio w7 10" sub and jl audio 1000w amp to power it. Now im a bit lost for direction and have a few questions.

Which amp do you have to be precise?

Quote:

Originally Posted by gaza01

If i use the sub as the governing factor for the music in my car then are the alpine kit and L7s up to the task or do u think they will need upgrading? (I want quality more than anything else. I absolutely hate big sound that is all distorted) I was looking at some focals about £220 for the pair. Or do i need something like mosconis or morels?

The way around would be to keep the gains of the sub on minimum and see if that helps. The other issue you will have, would be around the timing of the sound coming from the sub. If you low pass it at / below 60Hz, then you can skip that issue. But on those frequencies, you feel the bass than hearing it.

Quote:

Originally Posted by gaza01

If the eq settings in the HU was coded out would there be any benefit of a ms8?

Im thinking id like to run a centre speaker. Can the alpine amp be wired in such a way to run a centre speaker. If not how do you run a centre speaker and is there a 5 channel amp out there for this purpose? Also if the L7s did work then what speaker speaker would you recommend for the centre?

Thanks

Central speaker cannot be run with a processor.
You can connect it to right or left speaker, but you will be messing with the overall sound and stereo imaging.

That is where BMW oem L7 sound system or MS-8 comes. I have compared both as well and in all fairness MS-8 is miles ahead of BMW L7.

With Alpine kit, central speaker is no.

With MS-8 + after market kit, central speaker is a MUST and should be co-axial to get the upper frequencies as well.

If the sub is low passed at 60Hz then can u rely upon the underseats for the other bass frequencies?

So ms8 and centre speaker is workable but not with the alpine kit? So basically i can sell the alpine amp?

So L7 are about 40w and basically not a touch on the sub but is it worth trying the install and seeing what can be done in terms of making them work together powerwise?

Also how much will you charge for an install including coding?

I'd suggest you to listen the setup of P5 MUL and see if it attracts you.
I am not sure what amp he is using (power wise) but he has alpine kit plus subs in the car.
I felt that his subs were going into severe clipping at Gaydon car show, but who cares. At the end of the day people were getting attracted to his car because of two subs playing!

Once you decide which route you want to go, shoot me a pm with what you want to get done and I will be able to assist you from there on.